Pongwallclock
Pongwallclock Makingof
From the MAKE Flickr photo pool

Funnypolynomial used a discarded laptop to create this excellent remake –

I rescued an old Thinkpad ages ago and began a project to install it in a picture frame.
The original idea was to have it running things like Conway’s Life and the Mandelbrot set. But then I saw the Pong Clock on a blog and decided to just do that instead.

Check out the Flickr set for software download & video – The Pong Clock